Mounting arrangement for coverings for architectural openings

A mounting system for mounting a covering for an architectural opening, comprising:

• at least one bracket defining an inside direction and an outside direction;
• an arm defining a first end attached to said bracket and a second end including a finger projecting in said inside direction from said arm,
• biasing means biasing said arm toward said inside direction;
• said arm further defining a first position;
• and
• at least one end cap defining an axis of rotation for the covering and also defining a cavity, wherein said finger extends into said cavity for securing said end cap to said bracket, and
• wherein at least one of said arm and said end cap defines a first ramped surface which cooperates with the other of said arm and said end cap such that, when said arm is in said first position and said finger is received in said cavity, securing said end cap to said bracket, upward motion of said end cap relative to said bracket exerts a force which acts against the force of said biasing means to displace said arm outwardly to release said finger from said cavity.